User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.7 Build Identifier: version 2.0.0.21 (20090302) Add a feature to set an address as "Private", "For your eyes only" or some such in the address properties in Address book. Whenever there are any other co-recipients for a message, these addresses should default to Bcc. Reproducible: Always Steps to Reproduce: A) 1. Make a new address or edit the properties of an existing one 2. Fail to find an option to set address(es)/contact as hidden from other recipients B) 1. Make a goup/mailing list in Address Book 2. Fail to find any way to hide one or many of the group recipients or their addresses from the rest of the group. Actual Results: This feature doesn't seem to exist yet. No such options available. Expected Results: A) 1. Make a new address or edit the properties of an existing one 2. Under "Privacy", set the option "Hide" to any of "Don't hide", "from all other than self", "from all but members of [List of approved addresses/groups dropdown]", "from mailing list recipients" set address(es)/contact as hidden from other recipients 3. Watch this address default to Bcc whenever any other recipients exist for a message, be they manually added or inside a group/list. B) 1. Make a goup/mailing list in Address Book 2. Right-click on address card icon in the recipients list and select "Hidden". 3. The address card icon changes to reflect "Hidden" status, e. g. gets a red "?" instead of the "portrait" in the icon, or a "Classified" ribbon across it. 4. This address is Bcc when using this group in the Address Book for sending mail. If an address with such properties is one of many recipients to a message, be it manually added or as part of a group/list that exists in the Address Book, it should default to Bcc, in order to hide it from other recipients. This to prevent inadvertently disseminating addresses that for whatever reason should remain hidden/unknown.